.Once it is formed,a bad habit is not easy to 。
69. I have some problems. Please _____ them for me.
68. She her hands in delight when she heard the good news.
67. Many countries have sent up man-made communication satellites to _____ the earth, which is made possible for each household to use TV.
66. Now more and more college students _____ to go and work in the west provinces of China.
65. The Chinese people _____ brave and hard-working. The Chinese _____ a brave and hard-working people.